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authorRuss Cox <rsc@swtch.com>2020-05-04 23:20:08 -0400
committerRuss Cox <rsc@swtch.com>2020-05-04 23:41:15 -0400
commit7d6a248f2c68d70f58387afc69e73e695c3d940c (patch)
tree90dfff6deaf86185368433656b62dcc131bd07ef /man/man1
parent3caf5c238a886d06b438ec6d42f2609b8625463f (diff)
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rc: move free carat handling into parser
This fixes at least one shell script (printfont) that expected 'x'`{y}'z' to mean 'x'^`{y}^'z' as it now does. Before it meant: 'x'^`{y} 'z' One surprise is that adjacent lists get a free carat: (x y z)(1 2 3) is (x1 y2 z3) This doesn't affect any rc script in Plan 9 or plan9port.
Diffstat (limited to 'man/man1')
-rw-r--r--man/man1/rc.126
1 files changed, 3 insertions, 23 deletions
diff --git a/man/man1/rc.1 b/man/man1/rc.1
index 7ea8998a..df7af05b 100644
--- a/man/man1/rc.1
+++ b/man/man1/rc.1
@@ -290,28 +290,10 @@ then one operand must have one component, and the other must be non-empty,
and concatenation is distributive.
.PD
.SS Free Carets
-In most circumstances,
-.I rc
+.I Rc
will insert the
.B ^
operator automatically between words that are not separated by white space.
-Whenever one of
-.B $
-.B '
-.B `
-follows a quoted or unquoted word or an unquoted word follows a quoted word
-with no intervening blanks or tabs,
-a
-.B ^
-is inserted between the two.
-If an unquoted word immediately follows a
-.BR $
-and contains a character other than an alphanumeric, underscore,
-or
-.BR * ,
-a
-.B ^
-is inserted before the first such character.
Thus
.IP
.B cc -$flags $stem.c
@@ -367,7 +349,7 @@ or
.I Fd1
is a previously opened file descriptor and
.I fd0
-becomes a new copy (in the sense of
+becomes a new copy (in the sense of
.IR dup (3))
of it.
A file descriptor may be closed by writing
@@ -477,7 +459,7 @@ is executed.
The
.I command
is executed once for each
-.IR argument
+.IR argument
with that argument assigned to
.IR name .
If the argument list is omitted,
@@ -982,8 +964,6 @@ changes
.PP
Functions that use here documents don't work.
.PP
-Free carets don't get inserted next to keywords.
-.PP
The
.BI <{ command }
syntax depends on the underlying operating system